Improvement in looms



3 Sheets--Sheet1. ROBERT MUELLER.

Improvement in Looms. No.126,319.

Patented April30,1872,

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No. 126,319. PatentedApril30,1872.

UNITED STATES PATENT OFFICE.

ROBERT MUELLER, OF NEW YORK, N. Y., ASSIGNOR TO HIMSELF AND EMIL GREEFF,OF SAME PLACE.

IMPROVEMENT IN LOOMS.

Specification forming part of Letters Patent No. 126,319, dated April30, 1872.

To all whom it may concern.-

Be it known that I ROBERT 1\IUELLER, of the city, county, and tate ofNew York, have invented a new and useful Improvement in Looms; and I dohereby declare the following to be a full, clear, and exact descriptionthereof, which will enable those skilled in the art to make and use thesame, reference being had to the accompanying drawing forming part ofthis specification, in which drawing Figure 1 represents a transversevertical section of my loom in the plane at a", Fig. 2. Fig. 2 is alongitudinal vertical section of the same in the plane 51 y, Fig. 1.Fig. 3 is a plan or top view of the same. Fig. 4 is a front view of thetake-up mechanism detached. Fig. 5 is a plan, and Fig. 6 a sectionalfront view of the shuttle on a larger scale.

Similar letters indicate corresponding parts.

This invention relates to certain improvements in the mechanism of aloom, the parts being hereinafter described so as to need no furtherexplanation in this part of my specification.

In the drawing, the letter A designates a frame which supports theshuttle-race B. This shuttle-race is stationary, and it is provided withan opening, a, through which extend the warp-threads. The shuttle S isconstructed of a piece of sheet-metal, I), provided with flange c, whichcatches in the shuttle-race, (see Fig. 2.) On the upper and undersurfaces of the body of the shuttle are formed ribs d, of such a heightthat they prevent the spool or point of the shuttle from coming incontact with the shed, said ribs being rounded off at their ends toenable them to enter the shed without being liable to catch. In the bodyof the shuttle is an aperture, 6, for the reception of the spool f; andthe quill g, which supports the spool, is connected to the body b of theshuttle by a hinge-joint, h, so that it can be raised, as shown in Fig.6, for the purpose of removing or inserting the spool. When the quill isturned down its tip is locked by a spring-catch, t, (best seen in Fig.6,) the body of the shuttle being provided with a mortise, j, for thereception of the tip of the quill, while the spring-catch is providedwith a shoulder for the purpose of supporting the tip of the quill. Thelength of the shuttle S exceeds the width of the opening a, and themotion of the shuttle is produced by two levers, O G, which are situatedon opposite sides of the opening, and secured to a cross-bar, D, of theframe A by means of pivots k it, (see Figs. 1 and 2.) On the levers O C,Fig. 1, are roller-studs l l, which catch in cam-slots m m formed in aplate, E, which swings on a pivot, 11, and to which a rocking motion isimparted by means of a lever, F, that is firmly secured to saidcam-plate, and which is provided with an oblong slot, 0, that catchesover an eccentric wrist-pin, 12*, secured in the face of a cog-wheel G.This cogwheel is geared with the main-shaft H of the loom, and if arevolving motion is imparted to it the cam-plate E receives anintermittent oscillating motion, whereby the levers O O are caused toengage alternately with holes in the body-plate of the shuttle S, theslots m m in the cam-plate E being so formed that, by the action of thelevers (J G, the shuttle is carried across the opening a in theshuttle-race alternately in one and then in the other direction. Byfollowing the motion of the levers O C it will be noticed that theshuttle is never released simultaneously by both levers, for at themoment one of the levers passes out of gear with the shuttle the otherhas already been brought in gear with the same. By this arrangement ofthe mechanism for driving the shuttles I am enabled to impart to thesame a very rapid motion, and this object is still further facilitatedby the exceeding lightness of my shuttle, which, being constructed of asimple plate of sheet-metal, is lighter than shuttles are usuallyconstructed. The letters I I designate the heddle-franies, which aresuspended by means of yokes K from levers L, while their bottom ends aresecured by yokes K to levers L, the rear ends of the levers L L beingconnected together by means of rods M, (see Fig. 1,) in such a mannerthat each heddle-frame is stretched between its levers L L, and thatsaid heddle-frames are moved up and down with the greatest ease, and atframes, then drawn over or under a pivot secured in the levers L or L,and finally hooked on pins 10 12 secured in the heddle-frames. Byreleasing the hooked ends of the yokes from their pins 1) 11 eachheddle-frame can be readily removed. The levers L have their fulcrumsall on one and the same pin q, which is secured in a slide, 0", fittedin a slot, .9, in a standard, N, which rises from the frame A, but thepivot g, which forms the fulcrum for the levers L, is secured instandards N, which are rigidly attached to the frame A. The slide r,which supports the fulcrum-pin qof the upper levers L rests upon aneccentric, t, and by turning this eccentric the fulcrum-pin q can beraised or lowered, and the yokes K K which support the heddle-frames canbe strained or released. If it is desired to get in between theheddle-frames the yokes are released but when the loom is in operationthe yokes are strained so as to retain the heddle-frames firmly inposition. The rear ends or arms of the levers L and L are of differentlength; those levers which connect with the front heddleframes havingthe longest arms, and those which connect with the rear heddle-framesthe shortest, sothat the heddle-i'rames are raised and depressed more orless in proportion to their distance from their shuttle-race to producean even shed.

The heddle motion is produced by cams 0 O, which act on rollers u usecured in the ends of arms P, which extend from the rods M, (see Fig.1.) Said cams are mounted on shaft Q Q, which are geared together sothat they revolve in opposite directions at a uniform velocity, and thecams are so adjusted in relation to each other that the high portions ofthe cams O are opposite the low portions of the corresponding cams O,and that the rollers to u are always in contact with their appropriatecams, thereby firmly retaining each heddle-frame in its respectiveposition. The cams O 0 are all of uniform size and shape, and if therear arms of the levers L L should be made of a uniform length, theheddle-frames would all be raised and depressed to the same distance;but by reducing the length of the rear arms of the levers L L as thesame recede from the shuttle-race the throw of the heddle-frames can beeasily regulated, as above stated. The cams 0 0 are so arranged thatthey can be taken oh and replaced by others of different shapes,according to the pattern to be produced. The batten R is pivoted to astandard, T, secured to the frame A, and it carries a roller-stud, 1*,which engages with a cam-groove to, (see Fig. 2.) This cam-groove isformed in a disk mounted on the drivingshaft H, and it is of such ashape that the batten beats up each time a new weft-thread has beenthrown in by the shuttle.

The finished fabric passes over the breast beam U, thence round a roughsurface-roller, V, then partly round the tension-roller W to the take-uproller X. The tension-roller W is pressed in between the roughsurface-roller V and the take-up roller X by means of a weight, a whichis suspended from a cord or strap, 1), extending from the gudgeons ofthe tensionroller through loops 0 (See Figs. 2 and 4.) On the shaft ofthe rough surface-roller V is secured a worm-wheel, d (see Figs. 3 and4,) which engages with a worm, 6 on a shaft, f which also carries aratchet-wheel, 9 With this ratchet-wheel engages a leverpawl, h, thatconnects by a rod, with a pin, j secured in block W, as shown in Fig. 4.This block is mounted on a screw, 1, secured to a disk, M, whichreceives a revolving motion from the driving-shaft H. By turning thescrew 1 the block W, with its pin 3 can be moved toward or from thecenter of the disk m and thereby the throw of the lever-pawl h can bechanged, and the take-up motions can be regulated with the greatestnicety.

This loom is intended particularly for narrow goods, such as ribbons,suspenders, tapes, and similar articles, and its peculiar advantages arethat it can be run at considerable speed; that it is cheap in itsconstruction; that it can be readily adjusted for different patterns;and that it is not liable to get out of order.

What I claim as new, and desire to secure by Letters Patent, is-

1. The cam-plate E, receiving an oscillating motion by means of a lever,F, and acting on levers O C, which engage alternately with the shuttleS, substantially in the manner herein shown and described.

2. The combination of the rods M, provided each with an arm, P, havingtwo rollers, u u, the cams O O, graduated levers L L, yokes K K, andheddles I, all substantially as described.

3. The eccentric t, in combination with the slide 1", levers L, yokes K,and heddles I, substantially as set forth.

4. The rough surface-roller V and roller X, both running firmly in theirbeariu gs, in combination with a loose roller, W, which is drawn inbetween the two fixed rollers V X by a weight, a, the roughsurface-roller receiving its motion by a worm-wheel, d, worm eratchet-wheel g and adjustable crank, all constructed and operatingsubstantially in the manner shown and described.

ROBERT MUELLER.

Witnesses W. HAUFF, E. F. KASTENHUBER.

